diff options
| author | henryk <henryk@6dc7ffe9-61d6-0310-9af1-9938baff3ed1> | 2008-03-03 09:18:19 +0000 |
|---|---|---|
| committer | henryk <henryk@6dc7ffe9-61d6-0310-9af1-9938baff3ed1> | 2008-03-03 09:18:19 +0000 |
| commit | d3bab6e9439b7161b7724df0cc902f4adcf1ecce (patch) | |
| tree | c160196b7d058ebc3670805540c1bba0d869f357 /openpicc/application/ssc_buffer.h | |
| parent | 2f730c90916047ec0b419ed9469fa44f537b8ab6 (diff) | |
Implement transmission
Implement a 'pretender' for PoC: Since Rx is not working properly we'll just pretend to have received something based on the approximate length.
Clarify length calculations in machester encoder and remove obsolete test code
git-svn-id: https://svn.openpcd.org:2342/trunk@437 6dc7ffe9-61d6-0310-9af1-9938baff3ed1
Diffstat (limited to 'openpicc/application/ssc_buffer.h')
| -rw-r--r-- | openpicc/application/ssc_buffer.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/openpicc/application/ssc_buffer.h b/openpicc/application/ssc_buffer.h index fdb977f..7c79013 100644 --- a/openpicc/application/ssc_buffer.h +++ b/openpicc/application/ssc_buffer.h @@ -1,9 +1,14 @@ #ifndef SSC_BUFFER_H_ #define SSC_BUFFER_H_ +#include "iso14443.h" + #define SSC_RX_BUFFER_SIZE_AS_UINT8 2048 #define SSC_DMA_BUFFER_COUNT 4 +/* in bytes, used for the sample buffer that holds the subcarrier modulation data at fc/8 = 1695 MHz */ +#define SSC_TX_BUFFER_SIZE_AS_UINT8 ((MAXIMUM_FRAME_SIZE*( (8+1)*2 ) ) + 2 + 2) + #if SSC_RX_BUFFER_SIZE_AS_UINT8 < DIV_ROUND_UP((ISO14443A_MAX_RX_FRAME_SIZE_IN_BITS*ISO14443A_SAMPLE_LEN),8) #undef SSC_RX_BUFFER_SIZE_AS_UINT8 #define SSC_RX_BUFFER_SIZE_AS_UINT8 DIV_ROUND_UP((ISO14443A_MAX_RX_FRAME_SIZE_IN_BITS*ISO14443A_SAMPLE_LEN),8) @@ -39,8 +44,11 @@ typedef struct { u_int8_t data[SSC_RX_BUFFER_SIZE_AS_UINT8]; } ssc_dma_rx_buffer_t; - typedef struct { + volatile ssc_dma_buffer_state_t state; + u_int32_t len; /* Length of the content in bytes */ + void *source; /* Source pointer for a prefilled buffer; set to NULL if not used */ + u_int8_t data[SSC_TX_BUFFER_SIZE_AS_UINT8]; } ssc_dma_tx_buffer_t; #endif /*SSC_BUFFER_H_*/ |